Click on images for full-size photographs
 |
 |
 |
 |
The penis consists of the penile urethra, corpora cavernosa (erectile tissues), and the os penis, which is found in most non-primate mammals and is located dorsal to the penile urethra. The terminal end of the penis is formed by the glans, which is covered by the prepuce, a skin fold. The glans and prepuce are covered by a stratified squamous epithelium. The epithelium of the glans protrudes deeply into the dermis, thereby forming pits from which cornified filiform papillae project. The glans is richly innervated and has a well-vascularized dermis.
The 4X micrograph shows the terminal end of the penis (glans) and the covering prepuce, separated by the preputial cavity. The 10X micrograph offers details of the os penis and a corpus cavernosum. The 20X micrograph presents the preputial cavity and the stratified squamous epithelia of the prepuce and the glans. The 40X micrograph displays in detail the penile urethra's urinary epithelium and lamina propria of dense connective tissue.
© 2004 Texas Histopages. All rights reserved.